Medical College of Wisconsin
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Therapeutic evaluation of microRNA-15a and microRNA-16 in ovarian cancer. Oncotarget 2016 Mar 22;7(12):15093-104



Pubmed ID


Pubmed Central ID




Scopus ID

2-s2.0-84962911774   43 Citations


Treatment of chemo-resistant ovarian cancer (OvCa) remains clinically challenging and there is a pressing need to identify novel therapeutic strategies. Here we report that multiple mechanisms that promote OvCa progression and chemo-resistance could be inhibited by ectopic expression of miR-15a and miR-16. Significant correlations between low expression of miR-16, high expression of BMI1 and shortened overall survival (OS) were noted in high grade serous (HGS) OvCa patients upon analysis of The Cancer Genome Atlas (TCGA). Targeting BMI1, in vitro with either microRNA reduced clonal growth of OvCa cells. Additionally, epithelial to mesenchymal transition (EMT) as well as expression of the cisplatin transporter ATP7B were inhibited by miR-15a and miR-16 resulting in decreased degradation of the extra-cellular matrix and enhanced sensitization of OvCa cells to cisplatin. Nanoliposomal delivery of the miR-15a and miR-16 combination, in a pre-clinical chemo-resistant orthotopic mouse model of OvCa, demonstrated striking reduction in tumor burden compared to cisplatin alone. Thus, with the advent of miR replacement therapy some of which are in Phase 2 clinical trials, miR-15a and miR-16 represent novel ammunition in the anti-OvCa arsenal.

Author List

Dwivedi SK, Mustafi SB, Mangala LS, Jiang D, Pradeep S, Rodriguez-Aguayo C, Ling H, Ivan C, Mukherjee P, Calin GA, Lopez-Berestein G, Sood AK, Bhattacharya R


Sunila Pradeep PhD Assistant Professor in the Obstetrics and Gynecology department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Biomarkers, Tumor
Cell Movement
Cell Proliferation
Cystadenocarcinoma, Serous
Drug Resistance, Neoplasm
Epithelial-Mesenchymal Transition
Gene Expression Regulation, Neoplastic
Mice, Nude
Ovarian Neoplasms
Polycomb Repressive Complex 1
Survival Rate
Tumor Cells, Cultured
Xenograft Model Antitumor Assays
jenkins-FCD Prod-482 91ad8a360b6da540234915ea01ff80e38bfdb40a